Finite frequency noise in a quantum point contact between helical edge states
Mesoscale and Nanoscale Physics
2012-11-16 v2
Abstract
We propose and analyze the non-equilibrium finite frequency current-current correlations as a mean to characterize the helical nature of the edge states in a quantum spin hall geometry. We show that the finite frequency noise enables to unambiguously discriminate between the one-particle and the two-particles processes occurring in the helical liquid for both tunneling or weak-backscattering regimes.
Cite
@article{arxiv.1208.0729,
title = {Finite frequency noise in a quantum point contact between helical edge states},
author = {J. -R. Souquet and P. Simon},
journal= {arXiv preprint arXiv:1208.0729},
year = {2012}
}
Comments
5 pages, 5 figures